/**
 * <p>入门helloworkd程序</p>
 * @author webrx
 * @version 1.0
 */
public class Book {
    int age = 50;
    public static void main(String[] args) {
        int i = 50;
        //i = 300;
        /*

         */
        String name = "李四";
        System.out.println(i);
        System.out.println(name);
        System.out.println("name");
    }
}
